[ 5.316545] ata5.00: ATAPI: HL-DT-STDVD-RAM GH22LP20, 1.01, max UDMA/66

[ 28.032048] ata5.00: limiting speed to PIO4
[ 28.032052] ata5.00: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen
[ 28.032058] ata5.00: cmd a0/01:00:00:60:00/00:00:00:00:00/a0 tag 0 dma 96 in
[ 28.032062] ata5.00: status: { DRDY }
[ 28.032086] ata5: soft resetting link
[ 28.212474] ata5.00: configured for PIO4


I think your CD drive is not running with DMA mode enabled. It is running in 
PIO mode which is very slow. I think you should try to change the settings from 
your bios to enable DMA mode for your DVD drive.

Regards.

-- 
DVD can't burn and write at more than 1x
https://bugs.launchpad.net/bugs/322847
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